Canon iPF750 series, Service Manual

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Chapter 1
1-71
1.7.3 Precautions When Servicing Printer
1.7.3.1 Notes on the Data Stored in the Printer
0013-5942
iPF765 / iPF760 / iPF750 / iPF755
This printer counts the print length, number of ink tank replacements, carriage driving time, number of cleaning operations, number of cutter operations, and so on
and stores them in the main controller's EEPROM as a COUNTER in Service mode.
COUNTER provides important information about the printer usage status.
You can check this information by printing it in the service mode or displaying it on the display.
Follow the precautions below when servicing the printer.
(1) Repairing/replacing the PCB
When replacing the main controller, follow the specified replacement procedure.
For the main controller replacement procedure, see "DISASSEMBLY/REASSEMBLY" > "Points to Note on Disassembly and Reassembly" > "PCBs".
(2) After replacing the carriage unit
The information about the carriage driving time resides in the carriage unit. After replacing the carriage unit, select [INITIALIZE] > [CARRIAGE] in the service
mode to initialize the information about the carriage driving time.
(3) After replacing the purge unit
The information about the number of cleanings resides in the purge unit. After replacing the purge unit, select [INITIALIZE] > [PURGE] in the service mode to
initialize (clear) the information about the number of cleanings.
(4) On replacement of supplies
After supplies have been replaced, execute [INITIALIZE] > [PARTS COUNTER] > [PARTS xx] in service mode to initialize (clear) the parts counter information.
For the consumable parts, see "MAINTENANCE" > "Periodic Replacement Parts".
You cannot check the counter information once it is initialized (cleared). Be careful not to initialize the counter information before checking it.
You cannot modify the counter information from the operation panel.
1.7.3.2 Confirming the Firmware Version
0013-5945
iPF765 / iPF760 / iPF750 / iPF755
Firmware has been downloaded to the main controller.
When you have replaced the main controller, check that the firmware is the latest version. If not, update it to the latest version.
Reference:
For instruction on how to update the main controller, refer to "TROUBLESHOOTING" > "Version Up".
1.7.3.3 Precautions against Static Electricity
0013-5947
iPF765 / iPF760 / iPF750 / iPF755
Certain clothing may generate static electricity, causing an electrical charge to build up on your body. Such a charge can damage electrical devices.
To prevent this, discharge any static buildup by touching a grounded metal fitting before you start disassembling the printer.
1.7.3.4 Precautions for Disassembly/Reassembly
0013-5948
iPF765 / iPF760 / iPF750 / iPF755
The precautions for disassembly/reassembly are described in "DISASSEMBLY/REASSEMBLY".
1.7.3.5 Self-diagnostic Feature
0013-5950
iPF765 / iPF760 / iPF750 / iPF755
The printer has a self-diagnostic feature to analyze hardware problems.
The self-diagnosis result is shown on the display and indicated by lamps.
For detailed information, see "ERROR CODE".